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An example of polar but uncharged amino acid is ___________

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An example of polar but uncharged amino acid is ___________

(a) Lysine

(b) Aspartate

(c) Serine

(d) Arginine

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Question is taken from Types of Biological Molecules topic in portion Structures and Functions of Biological Molecules of Cell Biology

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Right choice is (c) Serine

To explain I would say: Lysine and Arginine are polar and positively charged amino acids. While Aspartate is a polar and negatively charged amino acid. Serine is a polar and uncharged amino acid.

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